docs: def process_tectonic_regionalisation(self):
          '''
          Processes the tectonic regionalisation from the yaml file
          '''
  
          if 'tectonic_regionalisation' in self.data.keys():
              tectonic_reg = TectonicRegionalisation()
              tectonic_reg.populate_regions(
                  parse_tect_region_dict_to_tuples(
                      self.data['tectonic_regionalisation']))
          else:
              tectonic_reg = None
          return tectonic_reg